Home / 28,405,856.70-39,200,852.07-17,392,396.86

Finding the Fourth Proportional to 28,405,856.70, 39,200,852.07 and 17,392,396.86

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Solution

The fourth proportional to 28,405,856.70, 39,200,852.07 and 17,392,396.86 is: 24,001,979.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,405,856.70 : 39,200,852.07 = 17,392,396.86 : x
  2. Step 2: Convert to fraction form
    28,405,856.70/39,200,852.07 = 17,392,396.86/x
  3. Step 3: Cross multiply
    28,405,856.70x = 39,200,852.07 × 17,392,396.86
  4. Step 4: Simplify right side
    28,405,856.70x = 681,796,776,451,592.50
  5. Step 5: Solve for x
    x = 681,796,776,451,592.50/28,405,856.70
  6. Step 6: Final answer
    x = 24,001,979.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.